Transaction in Own Shares

Pennon Group PLC
06 August 2007

Pennon Group Plc


6 August 2007


Transaction in Own Shares

Pennon Group Plc announces that it has today purchased through Merrill Lynch
International 150,000 ordinary shares at a price of 605.9353 pence per share.

The purchased shares will all be held in treasury.  Following the above purchase
and non-cancellation of such equity shares, Pennon Group Plc will hold 2,514,867
ordinary shares in treasury and a total of 352,649,407 ordinary shares will be
in issue (excluding shares to be held in treasury).










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